Lamp for lighting gas



C-, MciNTOSH.

Lantern.

Patented June 15, 1858.

UNITED STATES PATET OFIC.

O. MCINTOSH, OF JERSEY CITY, NEWV JERSEY.

LAMP FOR LIGHTING GAS.

To all whom it may concern:

Be it known that I, CHARLES MCINTOSH, of Jersey City, in the county ofHudson and State of New Jersey, have invented a new and usefulImprovement in Lamps for Lighting Gas; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, making a part of thisspecification.

Figure 1, is a front elevation of the front part of a lantern with theimproved bottom or base attached. Fig. 2, is a side elevation of theupper portion of ditto. Fig. 3, is a top view of ditto. Fig. 4, is aside elevation of the improved bottom or base detached. Fig. 5, is a topview of ditto.

Similar letters in the figures represent corresponding parts.

The nature of my invention consists in constructing the lamp itself witha vertical or nearly vertical passage through it; said passage being inclose relation to the wick tube or tubes so that a stream of gas issuingthrough it shall be caused to come in so close contact with the flame ofthe same as to be instantly ignited. By this arrangement of passagethrough the lamp the ordinary construction of lamp and lantern can beemployed, and arranged in the usual manner, without any change beingrequired in their shape and construction other than the formation of thepassage for the admission of the gas burner and flow of the gas to theflame of the wick tubes. Whereas with the devices at present in use thelamp has to be particularly adapted for use in connection with a gaslighting lantern, and also has to be arranged on one side of the lanternin such a manner as to preclude the use of the most approved combinedself acting lamps and lanterns.

To enable others skilled in the art to make and use my invention I willproceed to describe its construction and operation.

The upper portion A, of the lantern is provided with a handle B, glassfront C, and chimney D, for producing the necessary draft, and may bemade in the usual 01' most approved manner. The base E, may be securedto the upper portion by pins passing through right angled grooves F, orany other Specification of Letters Patent No. 20,573, dated June 15,1858 manner that will admit of its quick detachment and re-attachment,and is provided with one or more wick tubes G, on either side of itscenter. Beside the wick tube or tubes and in the center and bottom ofthe lantern is formed a tapered opening or passage-way H, flaringoutward as it approaches the bottom of the reservoir or base, after themanner of a trumpet, and reduced at its upper end to such a degree as toconcentrate the current of air or gas drawn through the opening orpassage way H, by the flames of the Wick tubes G, whose combustion issupplied by the air thus furnished.

When it is desired to ignite the gas-jet from a burner the lantern isbrought over the same after the supply cock has been turned on, whichcauses the gas to be drawn upward through the flared opening or passageway H, with the current of air that is constantly passing through, andto be concentrated at the upper smaller end and delivered therefrombeside the flame in a thin stream, and in such proximity to the same, asto cause it to be ignited, and this ignition to be instantaneouslycommunicated to the portion at the outlet of the burner. In this mannera burner can be lighted at a distance of several inches from the flameof the lantern, without bringing it within the same, by simply placingits discharging end in such relation to the current of air that isconstantly being drawn toward the flame of the lantern, as to cause thestream of gas escaping therefrom to be drawn with the current directlyin contact with said flame. To effect this it is only necessary to passthe bottom of the lantern over the top of the burner, without depressingit so as to bring the burner within the lantern, as this would involvethe risk and danger of the burner passing above the flame of the lanternwithout having its jet of gas ignited, and the lantern being filled withgas, which would of course result in an explosion.

The flared opening in the reservoir or base of the lantern may beextended in diameter at its lower part, to the full diameter of saidreservoir if desired, and gradually tapered to assume its reduceddiameter at the upper end.

I am aware that openings have been formed in the lower portions of lampsfor producing draft and supplying air to the flame, and therefore I layI10 claim to this device.

What I claim as my invention and desire to secure by Letters Patent isConstructing the lamp With a vertical or nearly vertical passage H,through it When used in connection with a lantern substantially as andfor the purposes set forth.

C. MOINTOSH.

Witnesses:

J. W. Coonns, W. TUSOH.

